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    • 2. 发明专利
    • Circumferential-directional strength measuring instrument for fuel sheath tube
    • 燃料管道循环方向强度测量仪
    • JP2007256164A
    • 2007-10-04
    • JP2006082927
    • 2006-03-24
    • Global Nuclear Fuel-Japan Co LtdNippon Nuclear Fuel Dev Co Ltd日本核燃料開発株式会社株式会社グローバル・ニュークリア・フュエル・ジャパン
    • NAKATSUKA MASAFUMIKASHIBE SHINJI
    • G01N3/12G21C3/06G21C17/06
    • Y02E30/40
    • PROBLEM TO BE SOLVED: To provide a circumferential-directional strength measuring instrument for a fuel sheath tube, capable of measuring the stress/strain characteristics, when a circumferential-directional load is applied in the irradiated fuel sheath tube of a light water type nuclear reactor, using a remote operation.
      SOLUTION: In this circumferential-directional strength measuring instrument for the fuel sheath tube, arranged with end plugs in both ends of a tubular testing object, and for measuring the mechanical characteristics of a tubular testing object material, based on the relation between the circumferential-directional stress resulting from an internal pressure, and a circumferential-directional strain generated in the tubular testing object by the circumferential-directional stress, by loading the internal pressure through the one end plug, an elastic sealing material is arranged in the both ends of the tubular testing object of a measured material; a seal compressing mechanism for compressing the sealing material is provided as a mechanism for reinforcing the sealing function for the internal pressure; and a characteristic as to the circumferential-directional strength of the fuel sheath tube material is found by the remote operation, in the radioactive fuel sheath tube material.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供一种能够测量应力/应变特性的燃料护套管的周向强度测量装置,当在轻水的照射燃料护套管中施加圆周方向的负载时 型核反应堆,使用远程操作。

      解决方案:在这种用于燃料护套管的圆周方向强度测量仪器中,在管状测试对象的两端设置有端塞,并且用于测量管状测试对象材料的机械特性,基于 由内部压力引起的圆周方向的应力和通过圆周方向的应力在管状测试对象中产生的圆周方向的应力,通过一端塞插入内部压力,弹性密封材料布置在两者中 测量材料的管状测试对象的端部; 提供用于压缩密封材料的密封压缩机构作为用于增强内部压力的密封功能的机构; 并且通过遥控操作在放射性燃料护套管材料中发现关于燃料护套管材料的周向强度的特性。 版权所有(C)2008,JPO&INPIT

    • 3. 发明专利
    • Seal mechanism of fuel cladding tube
    • 燃油密封管密封机构
    • JP2011153857A
    • 2011-08-11
    • JP2010014322
    • 2010-01-26
    • Global Nuclear Fuel-Japan Co LtdNippon Nuclear Fuel Dev Co Ltd日本核燃料開発株式会社株式会社グローバル・ニュークリア・フュエル・ジャパン
    • NAKATSUKA MASAFUMISAKAMOTO HIROSHIHIGUCHI TORU
    • G21C17/06G01N3/10G21C3/06
    • Y02E30/40
    • PROBLEM TO BE SOLVED: To provide a seal mechanism which makes seal mechanisms at both ends of a fuel cladding tube have wide gaps so as to be remotely controlled when attaching the fuel cladding tube to a testing machine by remote control, and capable of closing the gaps and allows the slide of the fuel cladding tube on a sealing surface at the time of a high-temperature and a high-pressure test.
      SOLUTION: The seal mechanism of the fuel cladding tube 11 has end plugs 15 and 21 arranged at both the ends of the fuel cladding tube 11, introduces a pressuring medium into the fuel cladding tube 11 via an inlet hole 13 formed at one end plug 21, and conducts a mechanical characteristic test on the fuel cladding tube 11 where a cross section having a predetermined gap G formed between the fuel cladding tube 11 and itself is composed of a backup ring 16 formed of a bent, hard, and plastic material, and a soft O-ring 14 arranged adjacent to the backup ring 16 before the mechanical characteristic test, and the gap G is closed by the deformation of the backup ring 16 at the time of the mechanical characteristic test.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种密封机构,其使得在燃料包层管的两端处的密封机构具有宽的间隙,以便在通过遥控器将燃料包层管附接到测试机时被远程控制,并且能够 关闭间隙,并且允许在高温和高压试验时将燃料包层管滑动到密封表面上。 解决方案:燃料包层管11的密封机构具有布置在燃料包层11的两端的端塞15和21,通过形成在一个的入口孔13将加压介质引入燃料包层管11中 并且在燃料包层管11上进行机械特性试验,其中在燃料包层管11和本身之间形成有预定间隙G的横截面由弯曲硬质塑料形成的支撑环16构成 材料和在机械特性测试之前邻近支撑环16设置的软O形环14,并且间隙G在机械特性测试时由于备用环16的变形而闭合。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Spacer for fuel assembly
    • 燃油组件间距
    • JP2005024422A
    • 2005-01-27
    • JP2003191008
    • 2003-07-03
    • Hitachi LtdNippon Nuclear Fuel Dev Co LtdToshiba Corp日本核燃料開発株式会社株式会社日立製作所株式会社東芝
    • NONAKA YOSHIONAKATSUKA MASAFUMI
    • G21C3/34G21C3/344
    • Y02E30/40
    • PROBLEM TO BE SOLVED: To provide a spacer for a fuel assembly provided with a ferrule tube having impact fracture proof performance against an impact from a fuel rod.
      SOLUTION: In this spacer for the nuclear reactor fuel assembly assembled integrally by collecting a plurality of thin-walled tubes called as the ferrule pipe worked to bend one portion of the thin-walled tube inwards, and by welding an outer circumference of an assembly of the thin-walled tubes while surrounding it with a thin sheet called as a band, a curvature radius R of a bent-worked portion has a value of satisfying Expression 1, where R0 is an inside diameter (mm) before press work of the ferrule tube, R is the minimum inside curvature radius (mm) after work formation of the ferrule tube, and T is a sheet thickness (mm) of the ferrule tube.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种具有针对来自燃料棒的冲击的抗冲击断裂性能的套圈管的燃料组件的间隔件。 解决方案:在用于核反应堆燃料组件的间隔件中,通过收集被称为套圈管的多个薄壁管一体地组装,以将薄壁管的一部分向内弯曲,并且通过焊接外部圆周 薄壁管的一个组合件围绕着被称为带状物的薄片,弯曲加工部分的曲率半径R具有满足式1的值,其中R0是压制加工前的内径(mm) 的套管,R是套圈管的成形后的最小内曲率半径(mm),T是套管的板厚(mm)。 版权所有(C)2005,JPO&NCIPI
    • 7. 发明专利
    • Non-destructive measurement method of hydrogen concentration in nuclear fuel member
    • 核燃料中氢浓度的非破坏性测量方法
    • JP2004101281A
    • 2004-04-02
    • JP2002261406
    • 2002-09-06
    • Global Nuclear Fuel-Japan Co LtdTokyo Electric Power Co Inc:The東京電力株式会社株式会社グローバル・ニュークリア・フュエル・ジャパン
    • ISHII YOSHIAKINAKATSUKA MASAFUMIISHIMOTO SHINJI
    • G01N29/00G01N29/04G01N29/12
    • PROBLEM TO BE SOLVED: To improve a measurement precision in the non-destructive measurement method of hydrogen concentration by an electromagnetic ultrasonic resonance method.
      SOLUTION: In the non-destructive measurement method, a magnet and a coil 13 are arranged near the surface of a member 11 to be measured. A magnetic flux density near the surface of the member to be measured is varied by giving a high-frequency current to a coil. Ultrasonic waves are generated from a part to be measured by a variation in the magnetic flux density. Ultrasonic vibration is received by an electromagnetic ultrasonic sensor. A frequency in a high-frequency current is changed to obtain a resonance frequency, and hydrogen concentration in the member to be measured is obtained based on the resonance frequency. Further, in the non-destructive measurement method, one coil is arranged so that the major axis of the coil does not coincide with the axial direction (for example extension direction) of the elastic characteristics of the member to be measured. Without changing the relative position relationship between the coil and the member to be measured, two resonance frequencies are obtained based on the deviation between the axial direction of elastic characteristics and the direction of the major axis. By using the two resonance frequencies (for example the difference), hydrogen concentration in the member to be measured is obtained.
      COPYRIGHT: (C)2004,JPO
    • 要解决的问题:通过电磁超声共振法提高氢浓度的非破坏性测量方法中的测量精度。 解决方案:在非破坏性测量方法中,磁体和线圈13布置在待测量的部件11的表面附近。 要测量的构件表面附近的磁通密度通过向线圈施加高频电流而变化。 通过磁通密度的变化从要测量的部分产生超声波。 超声波振动由电磁超声波传感器接收。 改变高频电流的频率以获得谐振频率,并且基于谐振频率获得待测量的部件中的氢浓度。 此外,在非破坏性测量方法中,一个线圈被布置成使得线圈的长轴与待测量构件的弹性特性的轴向(例如延伸方向)不一致。 基于弹性特性的轴向与长轴方向的偏差,不改变线圈和被测定部件之间的相对位置关系,可以得到两个谐振频率。 通过使用两个共振频率(例如,差),得到被测定部件的氢浓度。 版权所有(C)2004,JPO
    • 8. 发明专利
    • Hydrogenation method and hydrogenation test piece
    • 加氢法和加氢试验方法
    • JP2006337311A
    • 2006-12-14
    • JP2005165309
    • 2005-06-06
    • Global Nuclear Fuel-Japan Co Ltd株式会社グローバル・ニュークリア・フュエル・ジャパン
    • SEIKEN MASAKINAKATSUKA MASAFUMI
    • G01N1/28G21C17/00G21C17/06
    • PROBLEM TO BE SOLVED: To provide a test piece preparing method capable of controlling a hydrogen concentration in metal and a deposit situation of a hydride, to some extent, and allowing easily hydrogenation, and a test piece prepared by the preparing method.
      SOLUTION: This test piece preparing method has the first process for attaching hydrogen permeable metal or an alloy thereof on one face of the zirconium alloy thin test piece, the second process for bringing the one face attached with the hydrogen permeable metal or the alloy thereof into contact with an aqueous solution of low dissolved oxygen containing a hydroxide of a dissolved hydrogen alkali metal as a solute, or pure water, and for bringing the the other face of the test piece into contact with water or an aqueous solution not accelerating oxidation of the test piece, and the third process for heating to a high temperature the test piece with the one face brought into contact with the aqueous solution of low dissolved oxygen containing the hydroxide of the dissolved hydrogen alkali metal as the solute, or the pure water, and with the other face brought into contact with the water or the aqueous solution not accelerating the oxidation of the test piece.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 待解决的问题:提供一种能够控制金属中的氢浓度和氢化物的沉积情况,在一定程度上并允许容易氢化的试片制备方法以及通过制备方法制备的试片。 解决方案:该试件制备方法具有将氢可渗透金属或其合金附着在锆合金薄试片的一个表面上的第一工艺,第二种使一个表面附着有氢可渗透金属或 其合金与含有作为溶质的溶解氢碱金属的氢氧化物或纯水的低溶解氧水溶液接触,并使试验片的另一面与水或不加速的水溶液接触 试样的氧化,将第一种加热到高温的试验片与一面接触的溶液与溶解的氢碱金属的氢氧化物作为溶质的低溶解氧水溶液接触,或纯的 水,另一面与水或水溶液接触,不会加速试验片​​的氧化。 版权所有(C)2007,JPO&INPIT
    • 9. 发明专利
    • Concentration measuring method for hydrogen in member and hydrogen concentration measuring instrument
    • 成员氢浓度测量仪的浓度测量方法
    • JP2006258569A
    • 2006-09-28
    • JP2005075702
    • 2005-03-16
    • Global Nuclear Fuel-Japan Co LtdTokyo Electric Power Co Inc:The東京電力株式会社株式会社グローバル・ニュークリア・フュエル・ジャパン
    • ISHII YOSHIAKIMIYAZAKI AKIHIRONAKATSUKA MASAFUMIISHIMOTO SHINJI
    • G01N29/12G01N29/04
    • G01N29/2412G01N29/07G01N29/12G01N29/30G01N29/4427G01N2291/02809G01N2291/0421G01N2291/0422
    • PROBLEM TO BE SOLVED: To provide a measuring technique for hydrogen concentration to non-destructively obtain the concentration of hydrogen at an arbitrary position of an object under measurement.
      SOLUTION: This method is equipped with: a process for disposing an electromagnetic ultrasonic sensor 2 in the vicinity of a surface of an object 8 under measurement or on the surface for generating a magnetic field in which magnetic flux density changes at a high frequency with respect to a wall body of the object 8 while receiving a longitudinal ultrasonic wave, with its vibration deflecting in a direction parallel to the depth direction, and a transverse ultrasonic wave, with its vibration deflecting in a direction forming substantially 90° with the longitudinal ultrasonic wave; a process for causing the ultrasonic sensor 2 to generate a varying magnetic field so that the longitudinal and transverse ultrasonic waves come into resonance and receiving longitudinal and transverse ultrasonic waves generated in the object 8; a process for detecting the resonance frequency of the longitudinal and transverse ultrasonic waves; a process for calculating a prescribed resonance property index by using the resonance frequency of the longitudinal and transverse ultrasonic waves; and a process for calculating the concentration of hydrogen of the object 8 by referring to a standard material database 7 for therein storing a relation between the hydrogen concentration of a member of the same member specifications as the the object and the property index.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供氢浓度的测量技术,以非破坏性地获得测量对象的任意位置处的氢浓度。 解决方案:该方法配备有:将电磁超声波传感器2配置在测量对象物8的表面附近或表面上,以产生磁通密度变化高的磁场的处理 同时接收纵向超声波,其振动在与深度方向平行的方向上偏转,并且横向超声波的振动频率相对于物体8的壁体,其振动沿大致90度的方向偏转 纵向超声波; 使超声波传感器2产生变化的磁场,使得纵向和横向超声波共振并接收在物体8中产生的纵​​向和横向超声波的处理; 用于检测纵向和横向超声波的共振频率的处理; 通过使用纵横超声波的共振频率来计算规定的共振特性指标的处理; 以及通过参照存储与该物体相同的构件规格的构件的氢浓度与特性指标之间的关系的标准物质数据库7来计算物体8的氢浓度的方法。 版权所有(C)2006,JPO&NCIPI
    • 10. 发明专利
    • Method of non-destructive measurement on hydrogen concentration
    • 氢浓度非破坏性测量方法
    • JP2006258567A
    • 2006-09-28
    • JP2005075683
    • 2005-03-16
    • Global Nuclear Fuel-Japan Co LtdTokyo Electric Power Co Inc:The東京電力株式会社株式会社グローバル・ニュークリア・フュエル・ジャパン
    • ISHII YOSHIAKIMIYAZAKI AKIHIRONAKATSUKA MASAFUMIISHIMOTO SHINJI
    • G01N29/12G01N29/04
    • PROBLEM TO BE SOLVED: To provide a method of non-destructive measurement on hydrogen concentration in an object under measurement having a surface with a curvature by using an electromagnetic ultrasonic sensor having a planate sensor face.
      SOLUTION: The electromagnetic ultrasonic sensor 1 has the planate sensor face, generates a magnetic field with its magnetic flux density changing at a prescribed frequency from the sensor face, and receives an ultrasonic wave by the sensor face, the ultrasonic wave produced in a conductive material by the change in the flux density. This method of non-destructive measurement comprises: a process for disposing the ultrasonic sensor 1 in the vicinity of the surface with the curvature of the object 13 under measurement and inserting/disposing a space-filler 14 made of a feebly magnetic and conductive material in a void part formed between the sensor face and a surface of the object 13; a process for transmitting the flux density changing at a plurality of frequencies from the ultrasonic sensor 1 so that an ultrasonic wave from the object 13 causes resonance; and a process for receiving the ultrasonic wave generated in the object 13 to detect the resonance frequencies of the received ultrasonic wave, and finding hydrogen concentration in the object 13 from its anisotropy.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种通过使用具有平面传感器面的电磁超声波传感器,对具有曲率的表面测量的被测物体中的氢浓度进行非破坏性测量的方法。 解决方案:电磁超声波传感器1具有平面传感器面,从传感器面产生磁通密度以规定频率变化的磁场,并通过传感器面接收超声波, 导电材料通过磁通密度的变化。 这种非破坏性测量方法包括:将超声波传感器1布置在测量对象13的曲率附近的表面附近,并且将由磁导电材料制成的空隙14插入/设置 在传感器面和物体13的表面之间形成的空隙部分; 从超声波传感器1发送以多个频率变化的磁通密度使得来自对象13的超声波引起共振的处理; 以及用于接收在对象13中产生的超声波以检测接收到的超声波的共振频率以及从其各向异性发现对象13中的氢浓度的处理。 版权所有(C)2006,JPO&NCIPI